It's called League of War. It's like a military card based take on the Cartoon Wars genre. I'm absolutely addicted to it. F2P isn't very intrusive, but there's an energy system so that's the only blocker that seems an issue, although the game will actually give you refills if you're good enough. The bar also recharges very fast You can also face other people's squad/army things online and that's a nice challenge. Here's the link. Just thought I'd share because I'm enjoying it. https://itunes.apple.com/us/app/league-of-war/id684897995?mt=8
Amazing game . I play this game every day sience i got it. Crazy good.... Only downsize is the in-app... U just cant play more them 3-4 games a day in Versus mode.